.number-display{display:flex;flex-direction:column;align-items:center;gap:.5rem}.item-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(56px,1fr));gap:.4rem;max-width:360px}.item{filter:drop-shadow(0 2px 2px rgba(0,0,0,.15))}.item.spin{animation:spin var(--spin-ms, 2.5s) linear infinite;transform-origin:50% 50%}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.count-label{font-size:1.75rem;font-weight:700;color:#334155}.app-root{max-width:1200px;margin:0 auto;padding:1rem 1.25rem 4rem;font-family:Trebuchet MS,Segoe UI,system-ui,sans-serif;color:#1e293b}header{text-align:center}.subtitle{margin-top:-.5rem;color:#475569}.controls{display:flex;gap:1rem;flex-wrap:wrap;justify-content:center;margin:1rem 0 1.5rem}.controls label{display:flex;flex-direction:column;font-size:.9rem;font-weight:600;align-items:flex-start}.controls input{margin-top:.25rem;padding:.4rem .6rem;border:2px solid #94a3b8;border-radius:8px;width:80px;font-size:1rem}button{cursor:pointer;font-size:1.05rem;border:none;border-radius:14px;padding:.85rem 1.3rem;font-weight:700;background:linear-gradient(135deg,#6366f1,#3b82f6);color:#fff;box-shadow:0 4px 10px -2px #00000040;transition:transform .15s,box-shadow .15s}button:hover:not(:disabled){transform:translateY(-2px);box-shadow:0 6px 14px -2px #0000004d}button:active:not(:disabled){transform:translateY(0);box-shadow:0 3px 6px -2px #0006}button:disabled{opacity:.45;cursor:not-allowed}button.secondary{background:linear-gradient(135deg,#64748b,#475569)}.board{display:flex;align-items:flex-start;justify-content:center;gap:clamp(.75rem,3vw,3rem);flex-wrap:wrap}.side{background:#fff;padding:.75rem 1rem 1.25rem;border-radius:20px;box-shadow:0 8px 20px -6px #00000026;min-width:320px;position:relative;transition:box-shadow .25s,transform .25s}.side.winner{outline:6px solid #22c55e;transform:scale(1.02)}.vs{align-self:center;font-size:clamp(2rem,5vw,3.5rem);font-weight:800;color:#6366f1;text-shadow:0 3px 6px rgba(0,0,0,.2)}.answer-buttons{display:flex;justify-content:center;gap:1rem;margin:2rem 0 1rem;flex-wrap:wrap}.feedback{min-height:2.2rem;font-size:1.3rem;font-weight:600;text-align:center}.next-area{display:flex;gap:1rem;justify-content:center;align-items:center;margin-top:.5rem;flex-wrap:wrap}.next{background:linear-gradient(135deg,#f59e0b,#f97316)}.score{font-size:1.05rem;font-weight:600}.history{margin:2.5rem auto 0;max-width:480px;background:#fff;padding:1rem 1.2rem 1.2rem;border-radius:18px;box-shadow:0 6px 14px -4px #00000026}.history h2{margin:0 0 .75rem;font-size:1.25rem}.history ul{list-style:none;padding:0;margin:0;font-size:.95rem;display:grid;gap:.4rem}.history li{padding:.45rem .7rem;border-radius:10px;background:#f1f5f9;display:flex;justify-content:space-between}.history li.ok{background:#dcfce7;color:#166534}.history li.no{background:#fee2e2;color:#991b1b}footer{margin-top:3rem;text-align:center;font-size:.8rem;color:#64748b}@media (max-width: 680px){.side{min-width:min(100%,360px)}}.settings-btn{position:fixed;top:14px;right:14px;width:54px;height:54px;display:flex;align-items:center;justify-content:center;font-size:1.6rem;background:linear-gradient(135deg,#475569,#334155);border-radius:18px;box-shadow:0 6px 16px -4px #0006}.settings-btn:hover{transform:rotate(20deg)}.modal-backdrop{position:fixed;top:0;right:0;bottom:0;left:0;background:#0f172a8c;display:flex;align-items:flex-start;justify-content:center;padding:4rem 1rem 2rem;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);z-index:50}.modal{background:#fff;width:min(480px,100%);border-radius:28px;padding:1.6rem 1.8rem 2rem;box-shadow:0 12px 32px -8px #00000059;display:flex;flex-direction:column;gap:1.2rem}.modal h2{margin:0;font-size:1.5rem}.settings-grid{display:flex;gap:1.2rem;flex-wrap:wrap}.settings-grid label{display:flex;flex-direction:column;font-size:.85rem;font-weight:600}.settings-grid input{margin-top:.3rem;padding:.5rem .7rem;border:2px solid #94a3b8;border-radius:10px;font-size:1rem;width:110px}.modal-actions{display:flex;gap:.75rem;flex-wrap:wrap}.hint{font-size:.8rem;color:#475569;margin:.2rem 0 0}.symbol-tray{display:flex;justify-content:center;gap:1rem;margin:1.5rem 0 .5rem}.symbol{width:64px;height:64px;border:2px solid #475569;display:flex;align-items:center;justify-content:center;font-size:2.2rem;font-weight:700;background:#fff;border-radius:12px;-webkit-user-select:none;user-select:none}.symbol.symbol-click{box-shadow:0 4px 10px -2px #00000040;transition:transform .15s,box-shadow .15s}.symbol.symbol-click:hover:not(:disabled){transform:translateY(-3px);box-shadow:0 6px 16px -4px #00000059}.symbol.symbol-click:active:not(:disabled){transform:translateY(0);box-shadow:0 3px 8px -3px #0006}.symbol[draggable=true]{cursor:grab}.symbol:active{cursor:grabbing}.drop-zone{width:140px;height:110px;border:3px dashed #64748b;border-radius:18px;display:flex;align-items:center;justify-content:center;font-size:1.3rem;font-weight:600;color:#475569;background:#f1f5f9}.drop-zone.drag-over{background:#e0f2fe;border-color:#0ea5e9}.help-sentence{text-align:center;font-size:1rem;font-weight:600;margin-top:.5rem}.inline-symbols{display:flex;gap:.75rem;align-items:center;justify-content:center;margin:.5rem 0}.inline-symbol-btn{width:70px;height:70px;font-size:2.4rem;font-weight:800;border-radius:16px;border:2px solid #475569;background:#fff;color:#1e293b;cursor:pointer;box-shadow:0 4px 10px -2px #00000040;transition:transform .15s,box-shadow .15s}.inline-symbol-btn:hover{transform:translateY(-3px);box-shadow:0 6px 16px -4px #00000059}.inline-symbol-btn:active{transform:translateY(0);box-shadow:0 3px 8px -3px #0006}.inline-symbol-btn:disabled{opacity:.5;cursor:not-allowed}.legend{width:100%;display:flex;justify-content:center;gap:1.5rem;font-size:.85rem;font-weight:600;color:#334155;margin:0 0 .5rem;flex-wrap:wrap}.legend span{background:#e2e8f0;padding:.4rem .7rem;border-radius:12px;display:inline-flex;align-items:center;white-space:nowrap}.legend-symbol{font-size:1.6rem;margin-right:.25rem;line-height:1;display:inline-block}.effect-layer{pointer-events:none;position:fixed;top:0;right:0;bottom:0;left:0;overflow:hidden;z-index:60}.confetti-piece{position:absolute;top:-10vh;width:14px;height:10px;border-radius:3px;animation:confetti-fall linear forwards;opacity:.9}@keyframes confetti-fall{0%{transform:translateY(0) rotate(0)}to{transform:translateY(110vh) rotate(540deg);opacity:0}}.sad-face{position:absolute;top:20%;left:50%;transform:translate(-50%) scale(1);width:140px;height:140px;background:#f1f5f9;border:4px solid #64748b;border-radius:50%;display:flex;flex-direction:column;align-items:center;justify-content:center;animation:sad-bounce 1.6s ease}@keyframes sad-bounce{0%{transform:translate(-50%,-20px) scale(.7);opacity:0}40%{transform:translate(-50%) scale(1);opacity:1}85%{transform:translate(-50%) scale(1)}to{opacity:0}}.sad-face .eyes{display:flex;gap:30px;margin-bottom:14px}.sad-face .eyes span{width:18px;height:24px;background:#334155;border-radius:50%;position:relative}.sad-face .mouth{width:70px;height:36px;border:6px solid #334155;border-top:none;border-bottom-left-radius:70px;border-bottom-right-radius:70px;transform:rotate(180deg)}.sad-face .tear{position:absolute;right:38%;top:52%;width:14px;height:22px;background:#38bdf8;border-radius:50% 50% 55% 55%;animation:tear-drop 1.4s ease-in forwards}@keyframes tear-drop{0%{transform:translateY(0) scale(.2);opacity:0}30%{opacity:1}to{transform:translateY(110px) scale(.9);opacity:0}}body{margin:0;background:#f5f9ff}#root{min-height:100vh}